Question

( xy -3x²+1) + ( 3 + 5x² - 3xy)

Answer 1

A resposta é:   2x^2 - 2x.y +4

Answer 2

Olá, LayresDayane.

$(xy-3x^2+1)+(3+5x^2-3xy) \\ xy-3xy-3x^2+5x^2+1+3 \\ -2xy+2x^2+4$